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  2. List of dialling codes in the United Kingdom - Wikipedia

    en.wikipedia.org/wiki/List_of_dialling_codes_in...

    This is a list of telephone dialling codes in the United Kingdom and the Crown Dependencies, which adopts an open telephone numbering plan for its public switched telephone network. The national telephone numbering plan is maintained by Ofcom , an independent regulator and competition authority for the UK communications industries.

  3. Telephone numbers in the United Kingdom - Wikipedia

    en.wikipedia.org/wiki/Telephone_numbers_in_the...

    This leads to a restriction as to which initial digits can be used for subscriber numbers within those four-digit area codes, e.g. in the 01387 four-digit area code, subscriber numbers cannot begin with a 3 because 013873 is a separate five-digit area code; likewise in the 01946 four-digit area code, subscriber numbers cannot begin with a 7 ...

  4. List of telephone country codes - Wikipedia

    en.wikipedia.org/.../List_of_telephone_country_codes

    Worldwide distribution of country calling codes. Regions are coloured by first digit. Telephone country codes, but also sometimes referred to as country dial-in codes, or historically international subscriber dialing (ISD) codes in the U.K., are telephone number dialing prefixes for reaching subscribers in foreign countries or areas via international telecommunication networks.

  5. Telephone exchange names - Wikipedia

    en.wikipedia.org/wiki/Telephone_exchange_names

    Telephone numbers listed in 1920 in New York City having three-letter exchange prefixes. In the United States, the most-populous cities, such as New York City, Philadelphia, Boston, and Chicago, initially implemented dial service with telephone numbers consisting of three letters and four digits (3L-4N) according to a system developed by W. G. Blauvelt of AT&T in 1917. [1]

  6. List of telephone exchanges in London - Wikipedia

    en.wikipedia.org/wiki/List_of_telephone...

    Therefore, all area codes have a preceding 0 (zero) when dialling from within the United Kingdom. When dialling a UK number from abroad the zero is omitted and replaced by the calling country's international call prefix followed by 44, the country code for the UK.

  7. 1-5-7-1 - Wikipedia

    en.wikipedia.org/wiki/1-5-7-1

    As of December 2016 BT offers two services accessed by dialling 1571. Messages can be accessed by dialling in with an identification number, and a personal greeting can be recorded. Neither of the services can be disabled or re-enabled by the user, but must be cancelled or ordered, with a lag of several days. Answer 1571, £2.25/month.

  8. Add access phone numbers to AOL Dialer

    help.aol.com/articles/manually-add-access-phone...

    2. Enter your location and connection type and click Next. 3. Select your dialing options and click Next. 4. Enter your area code and click Next. 5. Select 2-3 access phone numbers and click Next. Note: You cannot manually type in an access number. An access number can only be selected from the list provided. 6. Confirm your settings and click ...

  9. Telephone numbering plan - Wikipedia

    en.wikipedia.org/wiki/Telephone_numbering_plan

    For other devices the user must replace the + with the international access code for their current location. In the United States, most carriers require the caller to dial 011 before the destination country code. [9] New Zealand requires the area code to be dialed when calling between two local calling areas. During the 1970s and 1980s, each ...